PrincipalProvider
PrincipalProvider =
"google-chat"|"oidc"|`oidc-${string}`|"static"|"none"
Defined in: types/channel-types/index.ts:98
Who vouched for a principal’s identity: the chat platform itself, an auth
provider (oidc, a named OIDC provider oidc-<name>, static), or none =
nobody did (the terminal): nothing identity-dependent treats it as a real
person. Each provider has its own, so two providers’ people never share a key.